16
16-1
16-2
20D2-S/G
21D1-S/G
21D2-S/G
TROUBLE SHOOTING TABLE
NO RASTER
Blown out.
Replace the fuse.
Check IC701, D701 and
C705.
The fuse is again blown out.
Does horizontal circuit
oscillate ?
Check Q752 and IC801.
D1001 (Power LED Red
dimly) turns on or turns
ON/OFF.
Check T701 pin (11) voltage
(Approx. 310V at 220V AC)
Check F701.
Check Secondary Main+
B
(Approx. 130V)
Check CRT connector
K1-K5 bias.
Check
C878.
Check
IC801.
Checking the
protector circuit.
Check R618 and R619.
D1001 (Power LED Red
brightly) turns on.
Check D751
Check R701 and R707
Summary of Contents for 20D2-G
Page 22: ...22 20D2 S G 21D1 S G 21D2 S G CHASSIS LAYOUT 20D2 S G ...
Page 23: ...23 20D2 S G 21D1 S G 21D2 S G CHASSIS LAYOUT 21D1 S G ...
Page 24: ...24 20D2 S G 21D1 S G 21D2 S G CHASSIS LAYOUT 21D2 S G ...
Page 25: ...25 20D2 S G 21D1 S G 21D2 S G BLOCK DIAGRAM CRT UNIT 20D2 S G CRT UNIT 21D1 S G 21D2 S G ...
Page 27: ...20D2 S G 21D1 S G 21D2 S G 20D2 S G 21D1 S G 21D2 S G BLOCK DIAGRAM MAIN UNIT 21D1 S G 28 29 ...
Page 28: ...30 20D2 S G 21D1 S G 21D2 S G BLOCK DIAGRAM HEADPHONE JACK UNIT ...
